While trying to make it easier to translate the FAQs, I'm removing the strange array we use there and switch to normal language strings.
As this already changes most of the content, we might aswell just move the FAQs to controllers.

I would say:
- /help/faq and /help/bbcode (in a /config/routing/help.yml file ^^)
- Use the feature as second namespace and maybe we will move it to an extension later, when we could manage extensions dependencies and when we will rewrite the installer (and so when it will be able to install extensions).

Every page that is not searchable is quite useless - "normal" people using the keyword search might get what they want if not only posts would be returned as results. Likewise the FAQ is visited rarely. Even the whole ACP suffers from not being searchable, which both affects rookies and experts (3.0.x: Search in ACP).